165144016 has 20 divisors (see below), whose sum is σ = 320168992. Its totient is φ = 82519776.

The previous prime is 165144013. The next prime is 165144017. The reversal of 165144016 is 610441561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165144013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41005 + ... + 44851.

Almost surely, 2^165144016 is an apocalyptic number.

165144016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165144016 is a deficient number, since it is larger than the sum of its proper divisors (155024976).

165144016 is a wasteful number, since it uses less digits than its factorization.

165144016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538 (or 6532 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 165144016 is about 12850.8371711729. The cubic root of 165144016 is about 548.6401845760.

Adding to 165144016 its reverse (610441561), we get a palindrome (775585577).

The spelling of 165144016 in words is "one hundred sixty-five million, one hundred forty-four thousand, sixteen".